javascript - 在运行nodejs的服务器上调用new Date()时，日期返回服务器启动时的日期

Question

在带有 Node 的 OpenShift 服务器上，我的 server.js 有一个 var currentTime = new Date()。当调用它时，我只能得到服务器每次启动的时间。我只是想把日期写成这样:

res.writeHead(200, {'Content-Type': 'text/plain'});
console.log(currentTime);
res.write("[" + currentTime + "] " + "Pages: " + output[0] + ", Requests: " + output[1]);
res.end();
console.log('Response written to the web.');

如何获取实际的当前时间而不是服务器时间？

Answer 1

也许您在服务器启动时缓存 currentTime 而不是创建 每个请求都有新的日期对象？你的代码是这样的吗？

var currentTime = new Date(); // Date object created at server start

function callback (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  console.log(currentTime);
  res.write("[" + currentTime + "] " + "Pages: " + output[0] + ", Requests: " + output[1]);
  res.end();
  console.log('Response written to the web.');
}

require('http').createServer(callback).listen(8080);

考虑将日期创建移到回调中:

function callback (req, res) {
  var currentTime = new Date(); // new date object created on each request
  res.writeHead(200, {'Content-Type': 'text/plain'});
  console.log(currentTime);
  res.write("[" + currentTime + "] " + "Pages: " + output[0] + ", Requests: " + output[1]);
  res.end();
  console.log('Response written to the web.');
}